Insects of Britain and Ireland: the genera of Lepidoptera-Geometridae

L. Watson and M.J. Dallwitz

Interactive key and information retrieval

The interactive key is easy to use, and has many features that will help you make accurate identifications, including:

• illustrations and notes to help you understand the characters;
• advice on the best characters to use;
• automatic recovery from errors;
• easy ways to confirm or reject an identification;
• illustrations and descriptions of taxa;
• diagnostic descriptions;
• differences between taxa.

If the Intkey app is already installed on your computer, you can start the key.

Intkey is available at delta-intkey.com/www/programs.htm.

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